Paint stripping compositions

Abstract

This invention concerns a composition useful as a paint remover, comprising: an organic carbonate, an alcohol, an activator, hydrogen peroxide, and water. The alcohol may be benzyl alcohol. The organic carbonate may be propylene carbonate, ethylene carbonate, or combination thereof. The activator may be an alkyl-substituted cycloalkane (naphthene), a soy oil, an alkyl soyate, or combination thereof.

What is claimed is:  
     
       1. A process for removing paint, comprising: applying a composition a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint, wherein the composition comprises effective amounts of an organic carbonate, an activator, an alcohol, hydrogen peroxide, and water, wherein the activator is an alkyl-substituted cycloalkane, a soy oil, an alkyl soyate, or combination thereof. 
     
     
       2. The process of  claim 1 , wherein the composition includes an alcohol. 
     
     
       3. The process of  claim 1 , wherein the organic carbonate is propylene carbonate, ethylene carbonate, or combination thereof. 
     
     
       4. The process of  claim 1 , wherein the activator is an alkyl-substituted cycloalkane. 
     
     
       5. The process of  claim 1 , wherein the activator is a soy oil. 
     
     
       6. The process of  claim 1 , wherein the activator is an alkyl soyate. 
     
     
       7. The process of  claim 1 , wherein the composition contains from about 10 to about 90 percent by weight of the organic carbonate, from about 0.1 to about 50 percent by weight of the alcohol, from about 0.1 to about 50 percent by weight of the activator, from about 0.1 to about 20 percent by weight of the hydrogen peroxide, and from about 0.1 to about 30 percent of the water. 
     
     
       8. The process of  claim 1 , further comprising an organic cosolvent. 
     
     
       9. The process of  claim 1 , further comprising a thickener. 
     
     
       10. The process of  claim 1 , further comprising a polyvinyl pyrrolidone thickener. 
     
     
       11. The process of  claim 1 , wherein the hydrogen peroxide is present in an amount in the range from about 3 to about 8 percent by weight. 
     
     
       12. The process of  claim 1 , wherein the alcohol is benzyl alcohol. 
     
     
       13. The process of  claim 1 , wherein the organic carbonate is present in an amount of from about 0.1 to about 90 percent by weight.